Patrick John Tristram Lawrence, 5th Baron Trevethin and 3rd Baron Oaksey, KC (born 29 June 1960) is a British barrister, hereditary peer and crossbench member of the House of Lords.

[1] He is a barrister practising from 4 New Square Chambers and was elected to sit in the House at a crossbench hereditary peers' by-election in October 2015, following the retirement of David Montgomery, 2nd Viscount Montgomery of Alamein.

[2] In 1987 he married Lucinda, a daughter of businessman Demetri Marchessini.

[3] He is the son of artist Tory Lawrence and aristocrat John Oaksey, who split in public fashion[4] in the mid-1980s when Tory Lawrence began a relationship with artist Maggi Hambling.

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